Geoege bender



(No Model.)

G. BENDER.

TYPE METAL POT AND PURNAGB.

N0. 389,135. Patented Sept. 4, 1888.

N PETERS. Phnxwmhngfapmr. wmmglun. n, C.

UNITED STATES PATENT OFFICE.

GEORGE BENDER, OF BROOKLYN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THEMANHATTAN TYPE FOUNDRY, OF NFV YORK,`N. Y.

TYPE-METAL POT AND FURNACE.

SPECIFICATION forming part of Letters Patent No. 389,135, datedSeptember 4, 1888.

Application filed January li), lSrS. Serial No. 261291. (No model.)

.To all whom, iz? may concern:

Be it known that I, GEORGE BENDER, a citizen of the United States,residing at Brooklyn, Kings county, New York, have invented eertain newand useful Improvements in Type Metal Pots and Furnaces; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itapperro tains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures marked thereon,which form part of this specification.

My invention relates to the furnaces and ketr5 tles attached totype-casting machines; and the object of the invention is to prevent theoxidation of the molten metal and to surround the same with the heatedair and products of combustion before they escape.

Heretofore the metal used for types had such a low melting-point that itrequired little orno care to keep the melting-kettle at the propertemperature; but with the introduction of type-metal composed largely ofzinc the necessity has arisen for heating the metal to a much higherdegree than usual,keeping it hot, and preventing oxidation. In brief, l.accomplish these purposes by providing the ordinary kettle of thetype-casting machine with a hollow cover, which serves as an escape-fluefor the products of combustion, and also by providing this cover, whereit has an opening to the molten metal beneath,with an additional plate,which serves to exclude the outer air.

In the drawings,in which the same letters refer to the same parts in allthe figures, Figure l represents a median vertical section of themelting-pot, furnace, and cover. Fig. 2 is a top plan view oi' themelting-kettle with the 4o cover removed. lilig. 4 is the same View withthe cover on, showing concealed parts in dotted lines; and Fig. 8 is abetteln plan view of the cover itself'.

Referring to the drawings, K'is a kettle of a type-castingmachine,p1ovided with a anged rim, k, and containing the pump l?, ductj), nipple N,and other usual appliances of a type casting machine. It isheated by means of the furnace F. In the example shown, the fuel 5o usedis gas supplied through the pipe g, while Any other fuel may be a is anair-inlet pipe.

used, of course. In the ordinary kettle the hot air and products ofcombustion pass to the flue or chimney at the back of the kettle, andabout opposite the nipple N, through which thejet of molten metal isthrown to the matrix. In my improvement I do not provide such an openingat the back of the kettle, lout provide two or more openings, as L' and7c-,in the iianged rim of the kettle,near the 6o nipple N. The productsof combustion pass through these openings to the hollow cover C, finallyescaping into the fluef,eonnecting with the chimney. The cover C iscomposed, pref erably, of a single casting or piece of metal, and may beregarded as an extension of the flue. Its bottom plate forms a cover forthe top of the kettle,to which it is secured by lugs l Z, or othersuitable means, and is provided with openings o o', corresponding withthe 70 openings 7c It in the kettle-rim k, and with other suitableopenings, as E and n, to admit of the passage of the pump P and nippleN.

A small metal lid or auxiliary cover, h, having a hook or handle, II,closes the top of the kettle when it is filled with molten metal.

The advantages of my improvement are obvious. The flame, hot air, andgases from the furnace,instead ofescapin g di rectl y to the chin1-ney,andtherebyheatingtheback partoftheket- 30 tie at the expense of theremainder, are by my device forced forward and around the nipple, wherethe greatest amount of heat is needed, and, passing through the openingsk and 76" in the rim and the corresponding openings, 0 o', `85 to thehollow cover C, are forced to pass over the top of the kettle and thenescape tothe ehimney,serving to keep the top of the molten mass hot andto exclude the air therefrom. The small lid It, added at pleasure,serves to 9o further close the top of the kettle.

I am well aware that type-kettles have been made in which thefurnaceliues are made to pass through the body of the molten metal; butsuch fines do not perform the varied functions of my improved invention.

That I claim as new is l. The combination, with the furnace of atypecasting machine, of a kettle provided with a anged rim havingopenings for the es- 10o cape of the products of combustion,and a hollowcover for the kettle provided with such 4. The combinatiomwith thekettle K,- having openings in its rim, of the hollow cover C, auxiliarycover h, and pump P, as and for the x5 purposes described.

In testimony whereof I alx my signature in presence of two witnesses.

GEORGE BENDER.

Witnesses:

T. G. WILKEs, WM. H. SLoAN.

